function changepic(dropdown,picname){
	var y = document.getElementById(dropdown).options[document.getElementById(dropdown).selectedIndex].value;
	if (y=="1"){
	document.getElementById(picname).src='../../images/costE.jpg';
	}else if (y=="2"){
	document.getElementById(picname).src='../../images/costD.jpg';
	}else if (y=="3"){
	document.getElementById(picname).src='../../images/costC.jpg';
	}else if (y=="4"){
	document.getElementById(picname).src='../../images/costB.jpg';
	}else if (y=="5"){
	document.getElementById(picname).src='../../images/costA.jpg';
	}else{
	document.getElementById(picname).src='../../images/costNO.jpg';
	}
return true;
}